NUC NUC 6i5 16 GB Fedora 25 nuc6i5: Processor: Intel Core i5-6260U @ 2.90GHz (4 Cores), Motherboard: Intel NUC6i5SYB, Chipset: Intel Skylake, Memory: 16384MB, Disk: 480GB KINGSTON SV300S3 + 256GB INTEL SSDPEKKW256G7, Graphics: Intel Iris 540 (Skylake GT3e) 3072MB (950MHz), Audio: Realtek ALC283, Monitor: BenQ LCD, Network: Intel Connection I219-V + Intel Wireless 8260 OS: Fedora 25, Kernel: 4.10.10-200.fc25.x86_64 (x86_64), Desktop: GNOME Shell 3.22.3, Display Server: Wayland, Display Driver: intel 2.99.917, OpenGL: 4.5 Mesa 13.0.4, OpenCL: OpenCL 2.0 beignet 1.3, Compiler: GCC 6.3.1 20161221, File-System: ext4, Screen Resolution: 3840x2160 NUC6i5: Processor: Intel Core i5-6260U @ 2.90GHz (4 Cores), Motherboard: Intel NUC6i5SYB, Chipset: Intel Skylake, Memory: 16384MB, Disk: 480GB KINGSTON SV300S3 + 256GB INTEL SSDPEKKW256G7, Graphics: Intel Iris 540 (Skylake GT3e) 3072MB (950MHz), Audio: Realtek ALC283, Monitor: BenQ LCD, Network: Intel Connection I219-V + Intel Wireless 8260 OS: Fedora 25, Kernel: 4.10.10-200.fc25.x86_64 (x86_64), Desktop: GNOME Shell 3.22.3, Display Server: Wayland, Display Driver: intel 2.99.917, OpenGL: 4.5 Mesa 13.0.4, OpenCL: OpenCL 2.0 beignet 1.3, Compiler: GCC 6.3.1 20161221, File-System: ext4, Screen Resolution: 3840x2160 Darktable darktable-2.2.4-1.fc25 Test: Boat - Acceleration: OpenCL Seconds < Lower Is Better nuc6i5 . 60.15 |=============================================================== Darktable darktable-2.2.4-1.fc25 Test: Boat - Acceleration: CPU-only Seconds < Lower Is Better NUC6i5 . 60.22 |===============================================================